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author | Dimitry Andric <dim@FreeBSD.org> | 2015-12-30 11:46:15 +0000 |
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committer | Dimitry Andric <dim@FreeBSD.org> | 2015-12-30 11:46:15 +0000 |
commit | dd58ef019b700900793a1eb48b52123db01b654e (patch) | |
tree | fcfbb4df56a744f4ddc6122c50521dd3f1c5e196 /test/DebugInfo/MIR/X86/live-debug-values.mir | |
parent | 2fe5752e3a7c345cdb59e869278d36af33c13fa4 (diff) | |
download | src-dd58ef019b700900793a1eb48b52123db01b654e.tar.gz src-dd58ef019b700900793a1eb48b52123db01b654e.zip |
Vendor import of llvm trunk r256633:
Notes
Notes:
svn path=/vendor/llvm/dist/; revision=292915
Diffstat (limited to 'test/DebugInfo/MIR/X86/live-debug-values.mir')
-rw-r--r-- | test/DebugInfo/MIR/X86/live-debug-values.mir | 260 |
1 files changed, 260 insertions, 0 deletions
diff --git a/test/DebugInfo/MIR/X86/live-debug-values.mir b/test/DebugInfo/MIR/X86/live-debug-values.mir new file mode 100644 index 000000000000..0af408a635f6 --- /dev/null +++ b/test/DebugInfo/MIR/X86/live-debug-values.mir @@ -0,0 +1,260 @@ +# RUN: llc -run-pass=livedebugvalues -march=x86-64 -o /dev/null %s | FileCheck %s + +# Test the extension of debug ranges from predecessors. +# Generated from the source file LiveDebugValues.c: +# #include <stdio.h> +# int m; +# extern int inc(int n); +# extern int change(int n); +# extern int modify(int n); +# int main(int argc, char **argv) { +# int n; +# if (argc != 2) +# n = 2; +# else +# n = atoi(argv[1]); +# n = change(n); +# if (n > 10) { +# m = modify(n); +# m = m + n; // var `m' doesn't has a dbg.value +# } +# else +# m = inc(n); // var `m' doesn't has a dbg.value +# printf("m(main): %d\n", m); +# return 0; +# } +# with clang -g -O3 -c -emit-llvm LiveDebugValues.c -S -o live-debug-values.ll +# then llc -stop-after stackmap-liveness live-debug-values.ll -o /dev/null > live-debug-values.mir +# This case will also produce multiple locations but only the debug range +# extension is tested here. This test case is tested with DWARF information under +# llvm/test/DebugInfo/live-debug-values.ll and present here for testing under +# MIR->MIR serialization. + +# DBG_VALUE for variable "n" is extended into BB#5 from its predecessors BB#3 +# and BB#4. +# CHECK: bb.5.if.end.7: +# CHECK: DBG_VALUE debug-use %rsi, debug-use _, !13, !20, debug-location !22 +# CHECK-NEXT: DBG_VALUE debug-use %ebx, debug-use _, !14, !20, debug-location !33 + + +--- | + ; ModuleID = 'live-debug-values.ll' + target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" + target triple = "x86_64-unknown-linux-gnu" + + @m = common global i32 0, align 4 + @.str = private unnamed_addr constant [13 x i8] c"m(main): %d\0A\00", align 1 + + ; Function Attrs: nounwind uwtable + define i32 @main(i32 %argc, i8** nocapture readonly %argv) #0 !dbg !4 { + entry: + tail call void @llvm.dbg.value(metadata i32 %argc, i64 0, metadata !12, metadata !20), !dbg !21 + tail call void @llvm.dbg.value(metadata i8** %argv, i64 0, metadata !13, metadata !20), !dbg !22 + %cmp = icmp eq i32 %argc, 2, !dbg !24 + br i1 %cmp, label %if.else, label %if.end, !dbg !26 + + if.else: ; preds = %entry + %arrayidx = getelementptr inbounds i8*, i8** %argv, i64 1, !dbg !27 + %0 = load i8*, i8** %arrayidx, align 8, !dbg !27, !tbaa !28 + %call = tail call i32 (i8*, ...) bitcast (i32 (...)* @atoi to i32 (i8*, ...)*)(i8* %0) #4, !dbg !32 + tail call void @llvm.dbg.value(metadata i32 %call, i64 0, metadata !14, metadata !20), !dbg !33 + br label %if.end + + if.end: ; preds = %if.else, %entry + %n.0 = phi i32 [ %call, %if.else ], [ 2, %entry ] + %call1 = tail call i32 @change(i32 %n.0) #4, !dbg !34 + tail call void @llvm.dbg.value(metadata i32 %call1, i64 0, metadata !14, metadata !20), !dbg !33 + %cmp2 = icmp sgt i32 %call1, 10, !dbg !35 + br i1 %cmp2, label %if.then.3, label %if.else.5, !dbg !37 + + if.then.3: ; preds = %if.end + %call4 = tail call i32 @modify(i32 %call1) #4, !dbg !38 + %add = add nsw i32 %call4, %call1, !dbg !40 + br label %if.end.7, !dbg !41 + + if.else.5: ; preds = %if.end + %call6 = tail call i32 @inc(i32 %call1) #4, !dbg !42 + br label %if.end.7 + + if.end.7: ; preds = %if.else.5, %if.then.3 + %storemerge = phi i32 [ %call6, %if.else.5 ], [ %add, %if.then.3 ] + store i32 %storemerge, i32* @m, align 4, !dbg !43, !tbaa !44 + %call8 = tail call i32 (i8*, ...) @printf(i8* nonnull getelementptr inbounds ([13 x i8], [13 x i8]* @.str, i64 0, i64 0), i32 %storemerge) #4, !dbg !46 + ret i32 0, !dbg !47 + } + + declare i32 @atoi(...) #1 + + declare i32 @change(i32) #1 + + declare i32 @modify(i32) #1 + + declare i32 @inc(i32) #1 + + ; Function Attrs: nounwind + declare i32 @printf(i8* nocapture readonly, ...) #2 + + ; Function Attrs: nounwind readnone + declare void @llvm.dbg.value(metadata, i64, metadata, metadata) #3 + + attributes #0 = { nounwind uwtable } + attributes #1 = { nounwind } + attributes #2 = { nounwind } + attributes #3 = { nounwind readnone } + attributes #4 = { nounwind } + + !llvm.dbg.cu = !{!0} + !llvm.module.flags = !{!17, !18} + !llvm.ident = !{!19} + + !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 3.8.0 (trunk 253049) ", isOptimized: true, runtimeVersion: 0, emissionKind: 1, enums: !2, subprograms: !3, globals: !15) + !1 = !DIFile(filename: "LiveDebugValues.c", directory: "/home/vt/julia/test/tvvikram") + !2 = !{} + !3 = !{!4} + !4 = distinct !DISubprogram(name: "main", scope: !1, file: !1, line: 6, type: !5, isLocal: false, isDefinition: true, scopeLine: 6, flags: DIFlagPrototyped, isOptimized: true, variables: !11) + !5 = !DISubroutineType(types: !6) + !6 = !{!7, !7, !8} + !7 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed) + !8 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !9, size: 64, align: 64) + !9 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !10, size: 64, align: 64) + !10 = !DIBasicType(name: "char", size: 8, align: 8, encoding: DW_ATE_signed_char) + !11 = !{!12, !13, !14} + !12 = !DILocalVariable(name: "argc", arg: 1, scope: !4, file: !1, line: 6, type: !7) + !13 = !DILocalVariable(name: "argv", arg: 2, scope: !4, file: !1, line: 6, type: !8) + !14 = !DILocalVariable(name: "n", scope: !4, file: !1, line: 7, type: !7) + !15 = !{!16} + !16 = !DIGlobalVariable(name: "m", scope: !0, file: !1, line: 2, type: !7, isLocal: false, isDefinition: true, variable: i32* @m) + !17 = !{i32 2, !"Dwarf Version", i32 4} + !18 = !{i32 2, !"Debug Info Version", i32 3} + !19 = !{!"clang version 3.8.0 (trunk 253049)"} + !20 = !DIExpression() + !21 = !DILocation(line: 6, column: 14, scope: !4) + !22 = !DILocation(line: 6, column: 27, scope: !23) + !23 = !DILexicalBlockFile(scope: !4, file: !1, discriminator: 1) + !24 = !DILocation(line: 8, column: 12, scope: !25) + !25 = distinct !DILexicalBlock(scope: !4, file: !1, line: 8, column: 7) + !26 = !DILocation(line: 8, column: 7, scope: !4) + !27 = !DILocation(line: 11, column: 14, scope: !25) + !28 = !{!29, !29, i64 0} + !29 = !{!"any pointer", !30, i64 0} + !30 = !{!"omnipotent char", !31, i64 0} + !31 = !{!"Simple C/C++ TBAA"} + !32 = !DILocation(line: 11, column: 9, scope: !25) + !33 = !DILocation(line: 7, column: 7, scope: !23) + !34 = !DILocation(line: 12, column: 7, scope: !4) + !35 = !DILocation(line: 13, column: 9, scope: !36) + !36 = distinct !DILexicalBlock(scope: !4, file: !1, line: 13, column: 7) + !37 = !DILocation(line: 13, column: 7, scope: !4) + !38 = !DILocation(line: 14, column: 9, scope: !39) + !39 = distinct !DILexicalBlock(scope: !36, file: !1, line: 13, column: 15) + !40 = !DILocation(line: 15, column: 11, scope: !39) + !41 = !DILocation(line: 16, column: 3, scope: !39) + !42 = !DILocation(line: 18, column: 9, scope: !36) + !43 = !DILocation(line: 15, column: 7, scope: !39) + !44 = !{!45, !45, i64 0} + !45 = !{!"int", !30, i64 0} + !46 = !DILocation(line: 19, column: 3, scope: !4) + !47 = !DILocation(line: 20, column: 3, scope: !4) + +... +--- +name: main +alignment: 4 +exposesReturnsTwice: false +hasInlineAsm: false +isSSA: false +tracksRegLiveness: true +tracksSubRegLiveness: false +liveins: + - { reg: '%edi' } + - { reg: '%rsi' } +calleeSavedRegisters: [ '%bh', '%bl', '%bp', '%bpl', '%bx', '%ebp', '%ebx', + '%rbp', '%rbx', '%r12', '%r13', '%r14', '%r15', + '%r12b', '%r13b', '%r14b', '%r15b', '%r12d', '%r13d', + '%r14d', '%r15d', '%r12w', '%r13w', '%r14w', '%r15w' ] +frameInfo: + isFrameAddressTaken: false + isReturnAddressTaken: false + hasStackMap: false + hasPatchPoint: false + stackSize: 8 + offsetAdjustment: 0 + maxAlignment: 0 + adjustsStack: true + hasCalls: true + maxCallFrameSize: 0 + hasOpaqueSPAdjustment: false + hasVAStart: false + hasMustTailInVarArgFunc: false +fixedStack: + - { id: 0, type: spill-slot, offset: -16, size: 8, alignment: 16, callee-saved-register: '%rbx' } +body: | + bb.0.entry: + successors: %bb.1.if.else(16), %bb.2.if.end(16) + liveins: %edi, %rsi, %rbx + + frame-setup PUSH64r killed %rbx, implicit-def %rsp, implicit %rsp + CFI_INSTRUCTION .cfi_def_cfa_offset 16 + CFI_INSTRUCTION .cfi_offset %rbx, -16 + DBG_VALUE debug-use %edi, debug-use _, !12, !20, debug-location !21 + DBG_VALUE debug-use %rsi, debug-use _, !13, !20, debug-location !22 + %eax = MOV32rr %edi + DBG_VALUE debug-use %eax, debug-use _, !12, !20, debug-location !21 + %edi = MOV32ri 2 + CMP32ri8 killed %eax, 2, implicit-def %eflags, debug-location !26 + JNE_1 %bb.2.if.end, implicit %eflags + + bb.1.if.else: + successors: %bb.2.if.end(0) + liveins: %rsi + + DBG_VALUE debug-use %rsi, debug-use _, !13, !20, debug-location !22 + %rdi = MOV64rm killed %rsi, 1, _, 8, _, debug-location !27 :: (load 8 from %ir.arrayidx, !tbaa !28) + dead %eax = XOR32rr undef %eax, undef %eax, implicit-def dead %eflags, implicit-def %al, debug-location !32 + CALL64pcrel32 @atoi, csr_64, implicit %rsp, implicit %rdi, implicit %al, implicit-def %rsp, implicit-def %eax, debug-location !32 + %edi = MOV32rr %eax, debug-location !32 + DBG_VALUE debug-use %edi, debug-use _, !14, !20, debug-location !33 + + bb.2.if.end: + successors: %bb.3.if.then.3(16), %bb.4.if.else.5(16) + liveins: %edi + + CALL64pcrel32 @change, csr_64, implicit %rsp, implicit %edi, implicit-def %rsp, implicit-def %eax, debug-location !34 + %ebx = MOV32rr %eax, debug-location !34 + DBG_VALUE debug-use %ebx, debug-use _, !14, !20, debug-location !33 + CMP32ri8 %ebx, 11, implicit-def %eflags, debug-location !37 + JL_1 %bb.4.if.else.5, implicit killed %eflags, debug-location !37 + + bb.3.if.then.3: + successors: %bb.5.if.end.7(0) + liveins: %ebx + + DBG_VALUE debug-use %ebx, debug-use _, !14, !20, debug-location !33 + %edi = MOV32rr %ebx, debug-location !38 + CALL64pcrel32 @modify, csr_64, implicit %rsp, implicit %edi, implicit-def %rsp, implicit-def %eax, debug-location !38 + %ecx = MOV32rr %eax, debug-location !38 + %ecx = ADD32rr killed %ecx, killed %ebx, implicit-def dead %eflags, debug-location !40 + JMP_1 %bb.5.if.end.7 + + bb.4.if.else.5: + successors: %bb.5.if.end.7(0) + liveins: %ebx + + DBG_VALUE debug-use %ebx, debug-use _, !14, !20, debug-location !33 + %edi = MOV32rr killed %ebx, debug-location !42 + CALL64pcrel32 @inc, csr_64, implicit %rsp, implicit %edi, implicit-def %rsp, implicit-def %eax, debug-location !42 + %ecx = MOV32rr %eax, debug-location !42 + + bb.5.if.end.7: + liveins: %ecx + + MOV32mr %rip, 1, _, @m, _, %ecx, debug-location !43 :: (store 4 into @m, !tbaa !44) + dead undef %edi = MOV32ri64 @.str, implicit-def %rdi, debug-location !46 + dead %eax = XOR32rr undef %eax, undef %eax, implicit-def dead %eflags, implicit-def %al, debug-location !47 + %esi = MOV32rr killed %ecx, debug-location !46 + CALL64pcrel32 @printf, csr_64, implicit %rsp, implicit %rdi, implicit %esi, implicit %al, implicit-def %rsp, implicit-def dead %eax, debug-location !46 + %eax = XOR32rr undef %eax, undef %eax, implicit-def dead %eflags, debug-location !47 + %rbx = POP64r implicit-def %rsp, implicit %rsp, debug-location !47 + RETQ %eax, debug-location !47 + +... |